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23 lines
674 B
TypeScript
23 lines
674 B
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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function _isTruthy(value: undefined | string): boolean {
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// Returns true if value is a string that is anything but 0 or false.
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return value !== undefined && value !== '0' && value.toUpperCase() !== 'FALSE';
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}
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export function isTTY(): boolean {
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// If we force TTY, we always return true.
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const force = process.env['NG_FORCE_TTY'];
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if (force !== undefined) {
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return _isTruthy(force);
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}
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return !!process.stdout.isTTY && !_isTruthy(process.env['CI']);
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}
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